Controlling device for running webs



March 17, 1931. H w, WOOD 1,796,912

CONTROLLING DEVICE FOR RUNNING WEBS Original Filed July 2. 1927 2Sheets-Sheet 1 March 17, 1931.

H. A. W. WOOD CONTROLLING DEVICE FOR RUNNING WEBS Original Filed July 2.1927 2 Sheets-Sheet 2 Patented Mar. 17, 1.931

\ unrrso STATES HENRY A. WISE WOOD, NEW. YORK,

PATENT OFFICE Y., ASSIGNOR 'IO WOOD NEWSPAPER MA- CHINERY CORPORATION,OF NEW YORK, N; Y., A CORPORATION OF VIRGINIA CONTROLLING DEVICE FORRUNNING WEBS Application filed July 2, 1927, Serial No. 203,15 RenewedJanuary 10, 1930.

Reference is to be had to the accompanying drawings, in which Fig. 1 isa side view showing the end of a running web roll and controllingdeviceconstructed in accordance with thisinvention;

Fig. 2 is a front elevation as indicated by the arrow 2 in Fig. 1, and

Figs. 3 and 4 are similar views showing another form in which thisinvention can be carried out.

I have shown the invention as used in connection with the web roll 10 onan arm of a reel 11 supported in position for delivering the web toguide rolls 12 and 13 on its way to the press. Feed belts have beenemployed heretofore in contact with such a roll as this for feeding theweb and particularly for insuring constant rotation of the rolls 1Oneither too fast nor too slow and therefore a constant tension on theweb.

In place of such belts I provide a frame comprising a pair of arms 16pivoted on a fixed shaft 17. On the bottom of the frame 16 is a shaft 18carrying a roller 19. On this shaft 18 are pivoted two arms 20constituting a frame and carrying on the bottom a shaft 21 on which is alower roller 22.

The shaft 17 is driven at the proper rate of speed by some suitabledrive, such as a chain 24 and a sprocket on the shaft. Also the shaft 18is driven from this shaft by a chain 23 and sprockets. The shaft 21 issimilarly driven by a chain 25.

It will be seen that this constitutes a flexible means for driving theroll 10 and controlling the speed with which it feeds the web toward thepress.

The sprocket chain 24 is driven from the press at such a speed as togive the rollers 19 and 22 a surface speed equal to the desired speed ofthe web. The frame composed of the arms 20 is free to swing on the shaft18 so that in all positions of the roll 10 as it goes around with thereel, these two rollers will be in contact with the web roll as long asit is delivering to the press. Also its size makes no difference exceptthat a greater weight is. applied to the surface of the roll, the largerit is, in the position shown in Fig. 1. Of course, the roller 19 isalways held in contact with the web roll 10 by gravity and it is free tomove in and out as will be obvious.

In the form shown in Figs. 3 and 4 the same principles are employed butin this case the parts which are not numbered the same as in the firsttwo figures are constructed a little differently. For example, from ashaft 27 swings a frame 26 carrying a shaft 29. This shaft 29 pivotallysupports a pair of heads 28 which are free to swing upon it and theyconstitute a frame also. This frame has two shafts 18 and 21 supportedat its ends and each one carrying a roller as 19 and 22. The rollers aredriven by chains and sprockets 23, 24 and 25 or in any other convenientway.

In either of the forms shown'the stretching and slipping of the beltsusually employed is eliminated, the construction is simplified and thereis greater flexibility in the alignment of the feeding rollers with theroll of paper in the second form than in the first. Also they run bygravity on the roll in all positions of the latter and depend upon grav-I bination of a frame with a second frame pivotally connected therewithand sup mounted, of a supporting ported thereby, two rollers mounted onsaid frames, and means for rotating said rollers, said rollers beingarranged to contact directly with the surface of a web roll forcontrolling the feed of the web therefrom.

2. In a web feed controlling device, the combination of a freely pivotedframe with a second frame pivotally connected therewith and supportedthereby, two rollers mounted on the second frame, and means for drivingsaid rollers positively, said rollers being arranged to come directlyinto contact with the surface of a web for feeding it.

3. In a web feed controlling device, ,the combination with a web rollmovably frame, a shaft extending across the supporting frame parallelwith the axis of the shaft of the roll, a second frame supported fromsaid shaft, and pivoted freely thereto, a shaft extending across thesecond frame, means for driving said shafts positively, and a rollermounted on each of said shafts independently of said driving means andadapted to directly engage the surface of the web roll.

4;. I11 a web feed controlling device for a printing press, thecombination with a web roll movably mounted, and a pivoted supportingframe normally held back from a vertical position by the web roll, of asecond frame pivoted at the lower end of the first named frame, twoshafts on the second frame, a roller mounted on each of said two shaftsand adapted to engage the surface of the web roll, and means independentof said rollers for driving said rollers positively from the press.

5. In a web feed controlling device for a printing press, thecombination with a web roll movably mounted, and a pivoted supportingframe normally held back from a vertical position by the web roll, of asecond frame pivoted near its center at the lower end of the first namedframe, two shafts on the second frame, one above and one below thepivots thereof, a roller mounted on each of said two shafts and adaptedto engage the surface of the web roll, the second frame being free toswing so as to cause both of the rollers thereon to engage thev web rollin all positions thereof and irrespective of its size, and means fordriving said rollers positively from the press. I In testlmony whereof Ihave hereunto affixed my signature.

, HENRY A. WISE WOOD.

